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The Garden Room & Annexe Guide Logo
Swift UnlimitedExplore what’s possible
Exceptional Spaces, Endless PossibilitiesFit for Life – Fit for PurposeWhatever your PassionDesigned for Work and LifeBeautifully Built, Uniquely YoursDedicated Specialised RoomsLeisure and Pleasure
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Garden Room Shell Builds

Updated: 20 September 2024
Reading Time: 2 minutes 12 seconds

A growing trend in garden room design is for companies to supply and install only the weathertight shell of the building. This option appeals to those who want the reassurance of having the core structure professionally installed, while still allowing them to complete some of the work themselves.

If the idea of a garden room shell interests you, we recommend speaking with Garden2Office, who offer this option on their designs, or Warwick Buildings, which provides a wide range of shell build options. Warwick Buildings offers an online configurator, allowing you to customise the building to your requirements and see the price updated with each choice.

A Growing Trend for Shell-Only Installations

While researching for our garden room price guide, we were surprised by how many companies now offer shell-only options, with key elements such as insulation, electrics, and interior finishes listed as optional extras.

This pricing approach serves two purposes: it makes the initial price appear more competitive, and it provides customers with the flexibility to choose which features to include.

Some Garden Room Shells Are Insulated; Others Leave It to You

The insulation in the floor, walls, and roof is what sets a garden room apart from other garden buildings. Some shell builds, like those offered by Warwick Buildings, allow you to choose whether the insulation is included.

Opting to install the insulation yourself could allow you to select your preferred materials. However, it’s important to confirm how much space is available for insulation and whether installing the shell without it will create areas that are difficult to insulate later. You’ll want to avoid 'cold spots' where frames are joined together.

Personalise Your Electrical Specification

Choosing a garden room shell without electrics gives you full control over your electrical layout. You can decide the positioning of sockets and lighting based on how you intend to use the space.

Remember, garden room electrics must comply with Part P of the Building Regulations, so it’s essential to work with a qualified electrician who can test the system and provide the necessary certification.

Make Your Mark on the Interior

Buying a garden room shell allows you to personalise the interior space without being restricted to a pre-set range of finishes. You have the freedom to choose the materials, colours, and finishes that best reflect your style and create the look you desire.

Do the Maths

When considering a garden room shell, be sure to calculate the additional costs required to complete the interior. Compare these with the cost of a fully installed garden room to ensure you’re making the right financial decision.

While an insulated shell build will cost more than a self-build kit, it is likely to be cheaper than having a fully finished garden room installed.

Visit the Garden Spaces website
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Visit the Garden2Office website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
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required in most cases
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building across England
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